Workers Informática Ltda

Workers Informática Ltda was compromised in a ransomware attack attributed to killsec3 in October 2025. The organization, operating in an undisclosed sector in Unknown, was added to the group's data leak site as part of an extortion campaign.

killsec3 operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

Workers Informática Ltda, a privately held company with no public stock ticker, specializes in providing connectivity and IT solutions for mainframe environments, serving major enterprises in Brazil for over 30 years.